Not sure what kind of things using radar?
Many problems in my setups where wAP ac’s are generating false positive radar patterns for SXTsq unintentionally pointing at them.
http://forum.mikrotik.com/t/radar-detect-problem/158642/1
Even seeing phantom wAP ac frequencies in that case. http://forum.mikrotik.com/t/disturbing-interference-between-sxtsq-5-ac-and-wap-ac/144321/1